* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

li {
  list-style: none;
}

a {
  color: #fff;
  text-decoration: none;
}

  
body {
  overflow: hidden;
  margin: 0px;
}

canvas {
  display: block; 
  position: fixed; 
  left: 0; 
  top: 0; 
  width: 100vw; 
  height: 100vh;
}